EASY
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When benzaldehyde (or any other aromatic aldehyde) is heated with anhydride of an aliphatic acid (containing two α -hydrogen atoms) in presence of its sodium salt, condensation takes place to form an unsaturated carboxylic acid. This reaction is called

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Important Questions on Aldehydes, Ketones and Carboxylic Acids

EASY
The product formed by the reaction of an aldehyde with a primary amine is:
EASY
In the following reaction
Aldehyde+AlcoholHClAcetal
Aldehyde  Alcohol
HCHO t-BuOH
CH3CHO  MeOH
The best combination is:
MEDIUM
Reaction of benzaldehyde with acetic anhydride in the presence of base is known as _____ and the product 
EASY

Mention the reagents used for the following conversions:

(m) C6H5CH3AC6H5CHO

(n) CH3CHOBCH3COOC2H5

(o) C6H5CHOCC6H5COCHOHC6H5

(p) CH3COCH3DCH32COHCH2COCH3

(q) CH3CH2COOHECH3CHBrCOOH

(r) CH3COCH3FCH3COCH2Br

MEDIUM
Which is the main organic product obtained by the reaction of 2, 2, 2 trichloro ethanal with calcium hydroxide?
MEDIUM
Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?
HARD
The test performed on compound x and their inferences are:
 
Test Inference
a 2, 4 - DNP test Coloured precipitate yellow
b Iodoform test Yellow precipitate
c Azo-dye test No dye formation

Compound x is:

HARD

Reagent(s) which can be used to bring about the following transformation is(are)


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EASY
Write chemical equations to illustrate the following name reactions: Benzoin condensation.